Also updated other places where we don't need to show anything if the
license is trial

This reverts commit a487c951.

All the CE features should be still enabled though

Check license for milestones on issue boards

Closes #2568

See merge request !2315

Introduce namespace license checks for Push Rules (EES)

Closes #2573

See merge request !2335

Clarify when Code Quality shows in MR widget

Closes #2782

See merge request !2298

Namespace license checks Issue & MR template

Closes #2580

See merge request !2321

And separate EE/CE for board.rb

Introduce namespace license checks for merge request approvers (EES)

Closes #2566

See merge request !2324

# Conflicts:
#   app/models/license.rb

Hide Focus mode button if feature not available in license

Closes #2569

See merge request !2303